Viewing archive of söndag, 25 mars 2012

Solaktivitetsrapport

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Rapport för sol- och geofysisk aktivitet 2012 Mar 25 2200 UTC
Skapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com

USAF/NOAA rapport för sol- och geofysisk aktivitet

SDF Nummer 085 publicerat klockan 2200Z på 25 Mar 2012

IA. Analys av solfläcksgrupper och solaktivitet från 24-2100Z till 25-2100Z

Solar activity was low. A C3/1n flare was observed from Region 1444 (N19E11) at 25/0028Z. This was followed by dimming in SDO/AIA 193 imagery north of Region 1444 at 25/0034Z. At 25/0448Z, a CME was observed in SOHO/LASCO C2 coronagraph imagery emerging from the northeast limb . A C2 flare occurred at 25/0157Z from Region 1445 (S24E52). Material was seen lifting off the southeast limb near Region 1445 at 25/0138Z in SDO/AIA 304 imagery. At 25/0512Z, a CME was observed in SOHO/LASCO C2 coronagraph imagery emerging from the southeast limb. Neither CME is expected to be particularly geoeffective. Region 1445 grew substantially over the past 24 hours and was classified as an Fho type group with beta magnetic characteristics. New Region 1446 (N23W27) was numbered today and classified as a small Bxo type group with beta magnetic characteristics.
IB. Prognos för solaktivitet
Solar activity is expected to be low with a chance for an M-class flare. Old Region 1429 (N19, L=295) is expected to return late on Day 3 (28 March), further increasing the possibility of an M-class event.
IIA. Sammanfattning av geofysisk aktivitet 24-2100Z till 25-2100Z
The geomagnetic field was quiet. Solar wind speed, measured at the ACE spacecraft, decreased over the past 24 hours and ended the period around 370 km/s. Bz was generally neutral.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is expected to be quiet for Days 1 and 2 (26-27 March), increasing to unsettled to active conditions on Day 3 (28 March) as a recurrent coronal hole high speed stream becomes geoeffective.
III. Chans för solutbrott från 26 Mar till 28 Mar
M-klass35%35%45%
X-klass05%05%10%
Proton01%01%05%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observerad       25 Mar 101
  Prognoserat   26 Mar-28 Mar  105/105/105
  90 Day Mean        25 Mar 121
V. Geomagnetiskt A-index
  Observerad Afr/Ap 24 Mar  009/010
  Förväntat     Afr/Ap 25 Mar  005/006
  Prognoserat    Afr/Ap 26 Mar-28 Mar  006/005-006/005-013/015
VI. Chanser för geomagnetisk aktivitet från 26 Mar till 28 Mar
A. Medelhöga breddgrader
Aktivt05%05%35%
Små stormförhållanden01%01%10%
Svåra stormförhållanden01%01%01%
B. Höga breddgrader
Aktivt15%15%15%
Små stormförhållanden15%15%30%
Svåra stormförhållanden05%05%45%

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